Hi Aninditha,
If you are looking to create views, which would be reflected to all the users, then we need to open the application in the admin mode from the workbench and create the views and save them. Once you save the changes by giving the application configuration name , a customizing TR would be created and if the rest of the users opens the applications, the views which were created would be visible to them the drop down menu.
If the application is integrated in sap portal, the application configuration name specified must also also specified in Application Configuration parameters in iView property of the application.
Check the below link on how to open an application in Admin Mode.
Customizing Web Dynpro Applications - Web Dynpro ABAP Configuration Framework - SAP Library
Regards,
Harsha